diff core/modules/views/src/Entity/Render/TranslationLanguageRenderer.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/views/src/Entity/Render/TranslationLanguageRenderer.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,117 @@
+<?php
+
+namespace Drupal\views\Entity\Render;
+
+use Drupal\Core\Language\LanguageInterface;
+use Drupal\views\Plugin\views\query\QueryPluginBase;
+use Drupal\views\ResultRow;
+
+/**
+ * Renders entity translations in their row language.
+ */
+class TranslationLanguageRenderer extends EntityTranslationRendererBase {
+
+  /**
+   * Stores the field alias of the langcode column.
+   *
+   * @var string
+   */
+  protected $langcodeAlias;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function query(QueryPluginBase $query, $relationship = NULL) {
+    // In order to render in the translation language of the entity, we need
+    // to add the language code of the entity to the query. Skip if the site
+    // is not multilingual or the entity is not translatable.
+    if (!$this->languageManager->isMultilingual() || !$this->entityType->hasKey('langcode')) {
+      return;
+    }
+    $langcode_table = $this->getLangcodeTable($query, $relationship);
+    if ($langcode_table) {
+      /** @var \Drupal\views\Plugin\views\query\Sql $query */
+      $table_alias = $query->ensureTable($langcode_table, $relationship);
+      $langcode_key = $this->entityType->getKey('langcode');
+      $this->langcodeAlias = $query->addField($table_alias, $langcode_key);
+    }
+  }
+
+  /**
+   * Returns the name of the table holding the "langcode" field.
+   *
+   * @param \Drupal\views\Plugin\views\query\QueryPluginBase $query
+   *   The query being executed.
+   * @param string $relationship
+   *   The relationship used by the entity type.
+   *
+   * @return string
+   *   A table name.
+   */
+  protected function getLangcodeTable(QueryPluginBase $query, $relationship) {
+    /** @var \Drupal\Core\Entity\Sql\SqlContentEntityStorage $storage */
+    $storage = \Drupal::entityTypeManager()->getStorage($this->entityType->id());
+    $langcode_key = $this->entityType->getKey('langcode');
+    $langcode_table = $storage->getTableMapping()->getFieldTableName($langcode_key);
+
+    // If the entity type is revisionable, we need to take into account views of
+    // entity revisions. Usually the view will use the entity data table as the
+    // query base table, however, in case of an entity revision view, we need to
+    // use the revision table or the revision data table, depending on which one
+    // is being used as query base table.
+    if ($this->entityType->isRevisionable()) {
+      $query_base_table = isset($query->relationships[$relationship]['base']) ?
+        $query->relationships[$relationship]['base'] :
+        $this->view->storage->get('base_table');
+      $revision_table = $storage->getRevisionTable();
+      $revision_data_table = $storage->getRevisionDataTable();
+      if ($query_base_table === $revision_table) {
+        $langcode_table = $revision_table;
+      }
+      elseif ($query_base_table === $revision_data_table) {
+        $langcode_table = $revision_data_table;
+      }
+    }
+
+    return $langcode_table;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function preRender(array $result) {
+    $view_builder = $this->view->rowPlugin->entityManager->getViewBuilder($this->entityType->id());
+
+    /** @var \Drupal\views\ResultRow $row */
+    foreach ($result as $row) {
+      $entity = $row->_entity;
+      $entity->view = $this->view;
+      $langcode = $this->getLangcode($row);
+      $this->build[$entity->id()][$langcode] = $view_builder->view($entity, $this->view->rowPlugin->options['view_mode'], $this->getLangcode($row));
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function render(ResultRow $row) {
+    $entity_id = $row->_entity->id();
+    $langcode = $this->getLangcode($row);
+    return $this->build[$entity_id][$langcode];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getLangcode(ResultRow $row) {
+    return isset($row->{$this->langcodeAlias}) ? $row->{$this->langcodeAlias} : $this->languageManager->getDefaultLanguage()->getId();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCacheContexts() {
+    return ['languages:' . LanguageInterface::TYPE_CONTENT];
+  }
+
+}